[AT] Kinda Antique Tractor Question
Cecil Bearden
crbearden at copper.net
Sun Dec 1 05:02:02 PST 2019
AC plugs used to have the washer loose in the box new. Champion was
always fastened securely to the plug. I never used Autolites much so I
can't remember.
On 12/1/2019 6:18 AM, Stephen Offiler wrote:
> Some plugs don't have washers; they have a beveled sealing surface.
> I've never seen a washer fall off. Image:
>
> https://shop.advanceautoparts.com/p/autolite-copper-resistor-spark-plug-103/5390346-P
>
> SO
>
>
> On Sat, Nov 30, 2019 at 6:02 PM Phil Auten <pga2 at basicisp.net
> <mailto:pga2 at basicisp.net>> wrote:
>
> Glad you were able to find the problem, Craig. Those washers
> aren't supposed to come off, but they obviously did somewhere. Did
> you buy the unit new or used?
>
> Phil in TX
>
>
> On 11/30/2019 11:52 AM, craig.warner47346 at frontier.com
> <mailto:craig.warner47346 at frontier.com> wrote:
>> The winner is....no washers on plugs. What a dumbass mistake.
>> They rarely fall off and o never thought to check. Too bad there
>> is nobody to blame other than me. Thanks guys.
>>
>>
>> Sent from Frontier Yahoo Mail for iPhone
>> <https://overview.mail.yahoo.com/?.src=iOS>
>>
>> On Saturday, November 30, 2019, 11:57 AM, Jim Becker
>> <mr.jebecker at gmail.com> <mailto:mr.jebecker at gmail.com> wrote:
>>
>> My exact thought too. It seems more likely that a set of
>> projected tip plugs were installed where there isn’t enough
>> room for them.
>> Jim Becker
>> *From:* Stephen Offiler
>> *Sent:* Saturday, November 30, 2019 10:53 AM
>> *To:* Antique Tractor Email Discussion Group
>> *Subject:* Re: [AT] Kinda Antique Tractor Question
>> The thing about the carbon hypothesis is that this is a twin,
>> and it's happening on both cylinders, sounds like both
>> affected equally. Doesn't seem like a random chunk of carbon
>> causing the issue would occur equally in both.
>> SO
>> On Sat, Nov 30, 2019 at 11:37 AM deanvp <deanvp at att.net> wrote:
>>
>> It could be carbon floating around in the combustion
>> chamber but also consider that when the engine warms up
>> expansion might cause zero clearance between the ground
>> side of the plug and the piston or valve. Check to see
>> what are the recommended plugs vs what are currently
>> installed. Also consider high RPM might play a role as
>> well.
>> Sent from my Verizon, Samsung Galaxy Tablet
>> -------- Original message --------
>> From: craig.warner47346 at frontier.com
>> Date: 11/29/19 9:32 PM (GMT-08:00)
>> To: Antique Tractor Email Discussion Group
>> <at at lists.antique-tractor.com>
>> Subject: Re: [AT] Kinda Antique Tractor Question
>> I don’t know a whole lot about the engine... not sure if
>> it’s OHV or not.
>>
>>
>> Sent from Frontier Yahoo Mail for iPhone
>> <https://overview.mail.yahoo.com/?.src=iOS>
>>
>> On Friday, November 29, 2019, 8:17 PM, Phil Auten
>> <pga2 at basicisp.net> wrote:
>>
>> The first thing that comes to mind is the piston
>> contacting the ground terminal of the plug. But if
>> that were the case there would be noise, I would
>> think, and the starting would revert to terrible
>> quickly. Perhaps there is a piece of carbon floating
>> around inside the cylinder that occasionally gets
>> pinched between the piston and the plug? I just can't
>> visualize anything else. If the head isn't to
>> difficult to get to you might pull it and check for
>> something like that. Is that a flathead or an OHV engine?
>>
>> Phil in TX
>>
>>
>> On 11/29/2019 6:11 PM, craig.warner47346 at frontier.com
>> wrote:
>> I’ve got a question that’s kinda antique tractor
>> related (depending on how you define antique.) I have
>> a 1992 Ingersoll 6018 with an Onan 16hp motor. It
>> usually starts and runs great. Last few weeks it’s
>> been terrible to start but then runs fine. I pulled
>> the plugs today and the gap was close to nothing in
>> both of them. Opened the gap to.030 and it fired
>> right up. Why would the plug gap close? I had issues
>> with them this spring and set it at that point.
>> Thanks,
>> Craig
>>
>>
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